Looks like with the newest supercharger about 45 minutes. Around 7 miles per minute if my calculations are correct. Just time for a quick bite to eat while charging.
I think it takes the same time to charge to 80% as it does to charge the last 20%.
I can gas up 8 minutes and be 70 miles down the road AND eat my lunch on the way by the time that toy truck is unplugged.